Eternal Water Heater

Eternal Water Heater
Ratings Guide
Best
Better
Good
Fair
Poor

Eternal
GU195S

Type: 19.5 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 4.9 GPM (77* Rise)
Nominal Price: $2200
Energy

0.96

Factor
Utility Cost

$211

National Avg
Warranty

15

Yrs Tank/HE
Warranty

3

Yrs Parts
Unit Cost

$113

Per GPM
Vent

PowerD

Type
10 Yr Cost

$5300

Install+Utilities
Eternal
GU120

Type: 12 GPM Tankless
Fuel: Natural Gas
Flow: 3 GPM (77* Rise)
Nominal Price: $1700
Energy

0.94

Factor
Utility Cost

$215

National Avg
Warranty

15

Yrs Tank/HE
Warranty

3

Yrs Parts
Unit Cost

$142

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4900

Install+Utilities
Eternal
GU145S

Type: 14.5 GPM Tankless
Fuel: Natural Gas
Flow: 3.6 GPM (77* Rise)
Nominal Price: $2000
Energy

0.95

Factor
Utility Cost

$213

National Avg
Warranty

15

Yrs Tank/HE
Warranty

3

Yrs Parts
Unit Cost

$138

Per GPM
Vent

PowerD

Type
10 Yr Cost

$5100

Install+Utilities
Eternal
GU195M

Type: 19.5 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 4.9 GPM (77* Rise)
Nominal Price: $2800
Energy

0.96

Factor
Utility Cost

$211

National Avg
Warranty

15

Yrs Tank/HE
Warranty

3

Yrs Parts
Unit Cost

$144

Per GPM
Vent

PowerD

Type
10 Yr Cost

$5900

Install+Utilities
Eternal
GU195S

Type: 19.5 GPM Tankless
Fuel: Propane Condensing
Flow: 4.9 GPM (77* Rise)
Nominal Price: $2200
Energy

0.96

Factor
Utility Cost

$513

National Avg
Warranty

15

Yrs Tank/HE
Warranty

3

Yrs Parts
Unit Cost

$113

Per GPM
Vent

PowerD

Type
10 Yr Cost

$8300

Install+Utilities
Eternal
GU120

Type: 12 GPM Tankless
Fuel: Propane
Flow: 3 GPM (77* Rise)
Nominal Price: $1700
Energy

0.94

Factor
Utility Cost

$524

National Avg
Warranty

15

Yrs Tank/HE
Warranty

3

Yrs Parts
Unit Cost

$142

Per GPM
Vent

PowerD

Type
10 Yr Cost

$7900

Install+Utilities
Eternal
GU145S

Type: 14.5 GPM Tankless
Fuel: Propane
Flow: 3.6 GPM (77* Rise)
Nominal Price: $2000
Energy

0.96

Factor
Utility Cost

$513

National Avg
Warranty

15

Yrs Tank/HE
Warranty

3

Yrs Parts
Unit Cost

$138

Per GPM
Vent

PowerD

Type
10 Yr Cost

$8100

Install+Utilities
Eternal
GU195M

Type: 19.5 GPM Tankless
Fuel: Propane Condensing
Flow: 4.9 GPM (77* Rise)
Nominal Price: $2800
Energy

0.96

Factor
Utility Cost

$513

National Avg
Warranty

15

Yrs Tank/HE
Warranty

3

Yrs Parts
Unit Cost

$144

Per GPM
Vent

PowerD

Type
10 Yr Cost

$8900

Install+Utilities

About This Data: Operating and 10 year costs are based on US EIA national averages of Electricity ($0.0125/kWh), Natural Gas ($13.50/1000 ft3), and Propane ($3.00/gal). Your state may be higher or lower, so compare relative costs between water heaters. Listed water heater prices are nominal and may vary. Installation costs are assumed $300 (tanks) and $1,000 (tankless).

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